The present invention provides a safety device for preventing a hand from being jammed in an elevator door including a conductive member attached to the surface of the door and the door frame whereby if the conductive member is contacted by the hand, it senses the current of the human body so as to control the elevator door, preventing the hand from being jammed in the door, and directly illuminates the surface of the door so as to enable the person to clearly see the hand contacting the door and to be warned.